Comparison of the structure and thermal properties of a poly(aryl ether ketone ether ketone naphthyl ketone) with those of poly(aryl ether ketone ether ketone ketone)

被引：0

作者：

Laboratoire de Physicochimie des Polymères, Université de Mons - Hainaut, 20 Place du Parc, B-7000 Mons, Belgium ^{[1
]}

不详 ^{[2
]}

不详 ^{[3
]}

机构：

[1] Laboratoire de Physicochimie des Polymères, Université de Mons - Hainaut, B-7000 Mons

[2] Instituto de Investigaciones en Materiales, Universidad Nacional Autonoma de Mexico, CU, Coyoacan, 04510, Mexico D.F.

[3] European Molecular Biology Laboratory, Hamburg Outstation, EMBL C/o DESY, D-22603 Hamburg

来源：

E-Polymers | 2007年

关键词：

35;

D O I：

10.1515/epoly.2007.7.1.1521

中图分类号：

学科分类号：

摘要：

Poly(oxy-1,4-phenylene carbonyl-1,4-phenylene oxy-1,4-phenylene carbonyl-2,6-naphthalene carbonyl-1,4-phenylene) or 2,6-PEKEKNK is a polymer of the poly(aryl ether ketone) family differing from PEKEKK by the presence of a naphthyl group linked at positions 2 and 6 to the two ketone groups. It is synthesized by electrophilic precipitation polycondensation of 2,6-naphthalenedicarboxylic acid chloride with 4,4'-bis-(4-phenoxy) benzophenone in the presence of aluminium chloride. The dimensions of the orthorhombic unit cell determined from an initially amorphous, stretched film are: a = 0.778 nm, b = 0.613 nm, c = 5.52 nm. In contrast with PEKEKK no signs of polymorphism were found for 2,6 PEKEKNK. Its glass transition and melting temperatures are 20 °C and 2 °C above those of PEKEKK, respectively.

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